Results 71 to 80 of about 28,925 (266)

Phoneme-Based Ratio Mask Estimation for Reverberant Speech Enhancement in Cochlear Implant Processors [PDF]

arXiv, 2021
Cochlear implant (CI) users have considerable difficulty in understanding speech in reverberant listening environments. Time-frequency (T-F) masking is a common technique that aims to improve speech intelligibility by multiplying reverberant speech by a matrix of gain values to suppress T-F bins dominated by reverberation.
arxiv  

Implantable Self‐Powered Systems for Electrical Stimulation Medical Devices

Advanced Science, EarlyView.
In this paper, the design strategy and clinical application of ISS are discussed in depth from four aspects: the design and optimization of the energy collection module, the selection and preparation of adaptive electrode materials, the innovation of system design strategy, and the biological effect of electrical stimulation of ISS.
Xi Cui, Li Wu, Chao Zhang, Zhou Li
wiley   +1 more source

Is cochlear implantation a good treatment method for profoundly deafened elderly?

Clinical Interventions in Aging, 2013
Magdalena Lachowska, Agnieszka Pastuszka, Paulina Glinka, Kazimierz Niemczyk Department of Otolaryngology, Hearing Implant Center, Medical University of Warsaw, Warsaw, Poland Purpose: To assess the benefits of cochlear implantation in the elderly ...
Lachowska M, Pastuszka A, Glinka P, Niemczyk K   +3 more
doaj  

Micro‐Coil Neuromodulation at Single‐Cell and Circuit Levels for Inhibiting Natural Neuroactivity, Neutralizing Electric Neural Excitation, and Suppressing Seizures

Advanced Science, EarlyView.
Micromagnetic stimulation (µMS) offers a precise method for neural inhibition, complementing existing neuromodulation techniques. Using an implantable micro‐coil device, µMS selectively suppresses cortical activity with high spatial resolution. It effectively counteracts micro‐electrode stimulation and reduces seizure amplitude, highlighting its ...
Kayeon Kim, Xiyuan Liu, Bingdong Chang, Guanghui Li, Gwendoline A. E. Anand, Su Genelioglu, Alexandra Katherine Isis Yonza, Andrew J Whalen, Rune W Berg, Shelley I Fried, Anpan Han, Changsi Cai   +11 more
wiley   +1 more source

Validation of image-guided cochlear implant programming techniques [PDF]

arXiv, 2019
Cochlear implants (CIs) are a standard treatment for patients who experience severe to profound hearing loss. Recent studies have shown that hearing outcome is correlated with intra-cochlear anatomy and electrode placement. Our group has developed image-guided CI programming (IGCIP) techniques that use image analysis methods to both segment the inner ...
arxiv  

Localization of Cochlear Implant Electrodes from Cone Beam Computed Tomography using Particle Belief Propagation [PDF]

arXiv, 2021
Cochlear implants (CIs) are implantable medical devices that can restore the hearing sense of people suffering from profound hearing loss. The CI uses a set of electrode contacts placed inside the cochlea to stimulate the auditory nerve with current pulses.
arxiv  

“Spin‐Rinse and Repeat”: Facile Processing to Improve Cytocompatibility of Poly(3,4‐Ethyelenedioxythiophene): Polystyrene Sulfonate Composites for Bioelectronics

Advanced NanoBiomed Research, EarlyView.
In this article, the concerns surrounding the potential toxicity of excess dopant in commercial widely utilized poly(3,4‐ethyelenedioxythiophene):polystyrene sulfonate formulations in organic bioelectronic applications is addressed. A simple method to remove this excess dopant with the aim of improving material cytocompatibility is presented. Materials
Joshua Killilea, Aaron Lee, Estelle A. Cuttaz, Giovanni Carlo Miceli, Leire L. Suquia, Josef A. Goding, Christopher A. R. Chapman, Rylie A. Green   +7 more
wiley   +1 more source

Endoscopic vs. volumetric OCT imaging of mastoid bone structure for pose estimation in minimally invasive cochlear implant surgery [PDF]

arXiv, 2019
Purpose: The facial recess is a delicate structure that must be protected in minimally invasive cochlear implant surgery. Current research estimates the drill trajectory by using endoscopy of the unique mastoid patterns. However, missing depth information limits available features for a registration to preoperative CT data.
arxiv  

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

The Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

A novel method for obtaining a better quality speech signal for cochlear Implants using kalman with drnl and ssb technique [PDF]

Advanced Computing: An International Journal ( ACIJ ), 3(4), 71 - 75. 2012, 2012
Cochlear implant devices are known to exist since a long time. The purpose of the present work is to develop a speech algorithm for obtaining robust speech. In this paper, the technique of cochlear implant is first introduced, followed by discussions of some of the existing techniques available for obtaining speech.
arxiv